18921170015

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{5639693}}^1$

素因数の和:5639770

約数の個数: 16

約数和(自身を含む): 25175594016

約数和(自身を除く): 6254424001

約数列:

[1, 5, 11, 55, 61, 305, 671, 3355, 5639693, 28198465, 62036623, 310183115, 344021273, 1720106365, 3784234003, 18921170015]

約数ペア:

[(1, 18921170015), (5, 3784234003), (11, 1720106365), (55, 344021273), (61, 310183115), (305, 62036623), (671, 28198465), (3355, 5639693)]